|Mission type||Earth orbiter|
|Operator||Telebrás and Viasat|
|Website||Portal SGDC Telebras|
|Mission duration||18 years (planned)|
|Manufacturer||Thales Alenia Space|
|Launch mass||5,735 kg (12,644 lb)|
|Dimensions||7.10 m × 2.20 m × 2.0 m (23.3 ft × 7.2 ft × 6.6 ft)|
|Start of mission|
|Launch date||May 4, 2017, 21:52UTC|
|Rocket||Ariane 5 VA236|
|Launch site||Kourou ELA-3|
|Semi-major axis||42,164.0 km (26,199.5 mi)|
|Perigee altitude||35,784.6 km (22,235.5 mi)|
|Apogee altitude||35,802.6 km (22,246.7 mi)|
|Argument of perigee||43.2613°|
|Epoch||July 8, 2018|
|Band||50 Ka band|
7 IEEE X-band
|Coverage area||Brazil, South Atlantic Ocean|
The Geostationary Defense and Strategic Communications Satellite or SGDC (in Portuguese: Satélite Geoestacionário de Defesa e Comunicações Estratégicas) is a Brazilian geostationary communication satellite that was built by Thales Alenia Space in France, it was placed in the orbital position of 75 degrees west longitude and will be operated by Telebrás. Telebrás selected Viasat as a partner to help build the associated ground system. The satellite was based on the Spacebus-4000 platform and its life expectancy will be 18 years.
The satellite was successfully launched into space on May 4, 2017, at 21:52 UTC, by means of an Ariane 5 vehicle from the French company Arianespace, launched from Guiana Space Centre, Kourou, French Guiana, together with the Koreasat 7. It had a launch mass of 12,800 pounds (5,800 kg). The SGDC will be equipped with 50 Ka band transponders and 5 X band transponders to provide broadband internet and communications to the Brazilian government and the Brazilian Armed Forces.
A backup satellite, SGDC-2, is planned for launch in 2022.